Invalid warning message in debug builds when using QFont::setFamily() with comma split

From Qt 6.2, QFont::setFamily() will no long split the family string on the comma and will keep it as a single family

void QFont::setFamily(const QString &family)
{
#ifdef QT_DEBUG
    if (family.contains(QLatin1Char(','))) {
        qWarning("From Qt 6.2, QFont::setFamily() will no long split the family string on the comma"
                 " and will keep it as a single family");
    }
#endif
    setFamilies(splitIntoFamilies(family));
}